first commit

src/Validator/Password.php

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+<?php
+
+namespace App\Validator;
+
+use Symfony\Component\Validator\Constraint;
+
+/**
+ * @Annotation
+ */
+class Password extends Constraint
+{
+    public $message = 'Votre mot de passe doit contenir au minimum 8 caractères, constitué de chiffres, de lettres et caractères spéciaux';
+}

src/Validator/PasswordValidator.php

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+<?php
+
+namespace App\Validator;
+
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+
+/**
+ * @Annotation
+ */
+class PasswordValidator extends ConstraintValidator
+{
+    public function validate($value, Constraint $constraint)
+    {
+        if (!empty($value)) {
+            if (strlen($value) < '8') {
+                $this->context->addViolation($constraint->message);
+            } elseif (!preg_match('#[0-9]+#', $value)) {
+                $this->context->addViolation($constraint->message);
+            } elseif (!preg_match('#[a-zA-Z]+#', $value)) {
+                $this->context->addViolation($constraint->message);
+            } elseif (!preg_match("/[|!@#$%&*\/=?,;.:\-_+~^\\\]/", $value)) {
+                $this->context->addViolation($constraint->message);
+            }
+        }
+    }
+}

src/Validator/Userusername.php

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+<?php
+
+namespace App\Validator;
+
+use Symfony\Component\Validator\Constraint;
+
+/**
+ * @Annotation
+ */
+class Userusername extends Constraint
+{
+    public $messageinvalid = "Le login n'est pas valide";
+    public $messagenotunique = 'Le login exisite déjà';
+}

src/Validator/UserusernameValidator.php

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+<?php
+
+namespace App\Validator;
+
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+
+/**
+ * @Annotation
+ */
+class UserusernameValidator extends ConstraintValidator
+{
+    protected $em;
+
+    public function __construct(EntityManagerInterface $em)
+    {
+        $this->em = $em;
+    }
+
+    public function validate($value, Constraint $constraint)
+    {
+        if (!empty($value)) {
+            // On s'assure que le login soit de 5 caractères minimum
+            if (strlen($value) < '5') {
+                $this->context->addViolation($constraint->messageinvalid);
+            }
+
+            // On s'assure que le username ne contient pas des caractères speciaux
+            $string = preg_replace('~[^@a-zA-Z0-9._-]~', '', $value);
+            if ($string != $value) {
+                $this->context->addViolation($constraint->messageinvalid);
+            }
+
+            // On s'assure que le username n'existe pas dans la table des registration
+            $registration = $this->em->getRepository("App\Entity\Registration")->findOneBy(['username' => $value]);
+            if ($registration) {
+                $this->context->addViolation($constraint->messagenotunique);
+            }
+        }
+    }
+}